Chromatography-Experimental investigation report.

Aim:To export the method of separating different coloured dyes(chromatography) and to relate this to real-world in society.

Materials:

6 filter paper strips
3coloured felt-pens
Pencil
250ml beaker
Packet of "M and M's"
2 paddle pop stick
6 paper clips
3 matches
Water
Procedure:

Step 1:On one end of a filter strip,wrote in pencil the brand name of colour of a felt-tip pen that was tested.
Step 2: They used a felt-pen to draw a large dot about 1.5 from the other end of the filter paper strips.

Step 3: It was repeated with the other felt-tip pens, using a separate filter paper strip for each.

Step 4: They added about 1cm of water to the beaker.

Step 5:They attached the filter paper strips …show more content…
You could do an experiment or chromatography to show with evidence that black has a numerous colour in it. First you would get a black sharpie and make a dot at the end of a strip of filter paper.Then you would add a small amount of water into the beaker,so that the water just touches the filter paper.Then you would wait for the colours to rise and you would probably see pink,orange,black,blue,purple and yellow.

4.Explain why you chose those three particular colours of M and M's you tested?
The group chose yellow,orange and brown, because they though that there would be the prime yellow colour. There is definitely yellow in yellow. Also to make the colour orange you need to mix red and yellow.They chose brown,because they thought that brown would have a mixture of colours including …show more content…
From the colours that were chosen all of them had doses of yellow in it. So definitely yellow,orange and brown have yellow food colouring. Black,green,gold and cream have been predicted to have hints of yellow in it.

6.The group listens to the teachers instructions and only did what was instructed. Also they didn't play with the equipment and cared the materials carefully.The group didn't eat the M and Ms for the experiment,because they knew that it was unhygienic. The technology(iPad) was kept away from water or other substances.

7. The group collected the data at the exact time it was discovered. The group communicated with each other,by asking for ideas and missed data. They made sure everyone was on track and working together. Pictures were taken to provide evidence for the data.

8.In experiment A. We changed the colour of the pen.

9. The variable that was kept constant was the amount and temperature of the water in the beakers. Also the size and type of filtering paper and amount time. The beaker size and the amount if food colouring that was each beaker. The hight of the filter paper was constant.